<template>
  <div>
    <p>{{ message }}</p>
    <p>
      <button @click="change">change</button>
    </p>
  </div>
</template>

<script>
export default {
  data () {
    return {
      message: '你是一个好人'
    }
  },
  methods: {
    change () {
      this.message = 'you are a bad girl'
    }
  }
}
</script>
